Pulley.



Patented Sept. l0, I901, E. L. WAGNER.

PULLEY.

(Application filed Nov. 27, 1900.)

3 Sheets-Sheet I.

(No Model.)

Fi I.

30 FIG.?.

I NVENTOR EMU. L. WAGNER BY 6 M HIS ATTORNEYS WITN ES 556 Patented Sept.I0, mm; E. L. WAGNER.

PULLEY.

(Application filed Nov. 27, 1900.)

3 Sheets-Shoot 2.

(lo llddel.)

Hus A-rTos-hevs WITNESSES ifiZWM m: NORRIS PEYERS c0. Fnuroummvqnsumoron. n. c,

Patented Sept. l0, 190d. E. L. WAGNER. 4

P U L L E Y.

'(Application filed Nov. 27, 1900.)

3 Sheets-Sheet 3.

(No Model.)

6 N m F me e l 3 m m F 4 44 o 5 3 4 4 L T H n M m 3 i 4 B Z v m: nonmsPETERS ca. Moro-Lima, wasmuawu. n. n,

UNITED STATES PATENT OFFICE.

- EMIL L. WAGNER, OF ABERDEEN, SOUTH DAKOTA.

PU LLI- IY.

SIPEGIFICATION forming part of Letters Patent No. 682,395, datedSeptember 10, 1901. Application filed November 27, 1900. Serial 3 (N0model-l To'ctll whom it may concern.-

Be itknown that I, EMIL L. WVAGNER, of Aberdeen, Brown county, SouthDakota,have invented certain new and useful Improvements in Pulleys, ofwhich the following is a specification.

My invention relates to pulleys for use with endless ropes, cables,chains, or round belts for transmitting power from place to place or inconnection with hoisting or elevating devices.

The invention is designed especially as an improvement over some of thefeatures shown and described in Letters Patent of the United States Nos.630,760 and 660,783, granted to me August 8, 1899, and October 30, 1900.

The object of the invention is to simplify and cheapen the constructionof the pulley by providing improved antifriction means over which therope, chain, or cable passes from one side of the pulley to the other.

' A'further object is to adapt the pulley for use with any suitablestyle of chain that may be used for transmitting power or for hoistingpurposes.

The invention consists generally in providing an antifriction wheel orroller in the periphery of the pulley with its axis at an angle to theaxis of the pulley.

Further, the invention consists in providing a fixed guide or guard foruse on the pulley when a chain is employed.

Further, the invention consists in various constructions andcombinations, all as hereinafter described, and particularly pointed outin the claims.

In the accompanying drawings, forming part of this specification, Figure1 is a horizontal section of a pulley embodying my invention. Fig. 2 isa vertical section of the same. Fig. 3 is a vertical section. Fig. 4 isa plan View showing the pulley in use with a rope. Fig. 5 is a frontview of the same. Fig. 6 is a plan view showing a fiat-faced pulleyadapted for usewith a chain. Fig. 7 is a front view. Fig. 8 is a sideview showing the support for the roller or wheel arranged in theperiphery ofthe pulley. Fig. 9 is a top view of the same. Figs. 10 and11 are details of preferred form of chain for use on the pulley. Fig. 12is a sectional view frame 4, that. is provided at the rear of the pulleywith a cross-bar 5. The pulley may be mounted in any suitable manner onthe frame of the separator or other mechanism on which the pulley isused; but for eonven- 6oience of illustration I have employed thesupporting means shown in the drawings.

In constructing a pulley in accordance with the drawings of my formerpatents I have found that the antifriction devices arranged in theperipheral face of the pulley added considerably to the expense ofbuilding the same, and I have therefore aimed in this invention tosimplify the construction of the device and provide a less expensivemeans that will,without unnecessary friction or wear on the rope, permitit to pass from one side of the pulley to the other. With this end inview I have divided the pulley vertically into two annular sections ormembers 6 and 7, having hubs 8, that are secured upon the shaft 2 at asuitable distance apart by means of pins 9 or in any other suitable way,so that a space is provided between the two members. Each of thesections of the pul- 8o ley is preferably provided in its face with anannular groove 10 to receive the rope, cable, chain, or round belt thatmay be used on the pulley.

11 represents a sectionof an endless rope that is looped or wrappedaround the sections of the pulley and passes from thence to atraction-engine or other suitable source of power.

As set forth in my former applications, 0 when the rope or cable islooped around the pulley it is necessary to provide some means toprevent it from passing off the end of the pulley during its revolution.I therefore provide a guide-plate 12, having slots 13 in one 5 end,adjustably secured on the frame 4 by bolts 14. The opposite end of saidplate is curved upwardly and extends over the face of the adjoiningsection of the pulley and acts as a guide to direct the rope from thesection 6 over the space between the sections to the groove in thesection 7. As shown in Fig. 5, I may provide a depending wing 12' on'the plate 12 to aid in guiding the rope across when it is reversed.

On the cross-bar 5 I prefer to providea plate 15, having slots 16 toreceive bolts 17, by means of which said plate is rendered horizontallyadjustable, and the upwardly-turned inner end 18 of said plate ispreferably secured by bolts 19 to a bar 20, that extends horizontallybetween the sections 6 and 7 and is preferably provided near its innerend with a bend or turn and .a socket 22, wherein a stud or axis 25 ofan antifriction wheel or roller 24 is adjustably supported. The bend orturn in the bar causes the axis of said wheel to stand at an angle tothe axis of the pulley and the face of the wheel to occupy a diagonalposition within the face of the pulley. The bar being adjustable on itssupport may be moved in or out to adjust the wheel with respect to theface of, the pulley. A flange 25 is preferably provided on one side ofthe wheel to prevent the rope from accidentally slipping off the samewhile passing from one section or member of the pulley to the other, andto prevent the rope or cable from running off the pulley when runningforward I prefer to provide a flanged wheel 26, supported on a bracket27, having slots 28, through which bolts 29 pass to secure said bracketson the frame 4. The wheel 26 is thus rendered adjustable and may bemoved toward or from the wheel 24 to adapt the device for use with ropesor cables of different size and adjust it in proper position to preventthe rope from leaving the wheel 24 and insure its being directed intothe groove in the member 6 when traveling forward. As the pulleyrevolves the rope or cable will travel in the grooves of the membersthereof and from one member to another, and as said grooves arecomparatively shallow I have found it desirable to provide some meansfor filling, substantially, the space between the peripheral faces ofthe members to prevent the rope or cable from accidentally slipping inbetween them. This mearis consists, preferably,of a curved member 30, ofwood or other suitable material, having, preferably, a rounded edge 31,projecting above the face of the pulley and secured by bolts or othersuitable means to a plate 31, that is adjustably supported on the bolts19. The forward end of the member is cut away on the under side toaccommodate the antifriction-wheel 24 and engages the upwardly-curvedend of the plate 12, and the lower edge of said member rests upon thetop of the bar 20 and is firmly supported thereby. The space above thepulley-shaft is thus guarded and the rope prevented from slipping inbetween the sections of the pulley. Below the shaft I prefer to providea second member 32, also preferably of wood, provided, preferably, witha bar 33', that is adjustably secured to the under side of the bar 5 byany suitable means, preferably bythebolts 17. The plate 32 substantiallyfills the space between the sections of the pulley below its shaft andpresents a curved rounded edge that extends below the face of the pulleya distance corresponding to the extension of the members 30 above theshaft and effectually prevents .the rope or cable from working into thespace between the two sections forming the lower portion of g thepulley.

The sections or segments 30 and 32 may be modified considerablyin form,may be made of any suitable material, and may be secured in anypreferred Way to the frame upon which the pulley-shaft is supported orto the bar 20.

The inner edges of the grooves 10 in the faces of the sections of thepulley are cut away, as will be noted in Fig. 1, to facilitate thepassage of the rope or cable from the grooves to the guidingantifriction-wheel 24.

As clearly shown in Figs. 8 and 9, I may prefer to provide a hub 34 onthe shaft 2, between the sections of the pulley, and adjustably securethe same to the bar or plate 20 by means of bolts 35, passing throughslots 36. A firm substantial support is thus provided for the plate 20and the guiding-wheel carried thereby..

In Fig. 6 I have shown a modified construetion, which consists inproviding a pulley divided vertically, as before, into two annularsections or members 35 and 36, having fiat peripheral faces and adaptedparticularly for use with a chain 37, having substantially flat links,as shown in Figs. 6 and 11.

In Figs. 5 and 7 I have shown the guidingwheel 24 supported on anupright standard 38, having feet 39 adj ustably secured by bolts 40 to abase 41, provided beneath the pulley.

Instead of using the chain having flat links I may employ the styleshown in Fig. 10, usually known as twisted links, and when either ofthese styles of chain or any other is employed I prefer to remove theguard-wheel 26 and substitute therefor a plate 42, having slots 43,through which bolts 44 pass to secure the plate to the frame 4 andpermit its horizontal adjustment. At its inner end the plate 42 isprovided with a downwardlycurved portion 45, that is adapted to engagethe chain and prevent it from running off the pulley when runningforward.

In Figs. 12 and 13 I have shown still another modification of thepulley, which consists in providing a narrow-faced pulley 46 with anannular diagonal slot or groove 47. Instead of dividing the same intotwo independent sections or members on each side of the slot I prefer toprovide annular grooves in the face of the pulley, and within the slotabove and below the pulley-shaft I arrange the guard blocks or plates 30and 32, as heretofore described, and within said slot, with its axis atan angle to the axis of the pulley, I provide the antifriction-rollersupported on the upright standard described with reference to Fig, 7.This form of pulley has only one hub on the shaft and comprises but onecomparatively narrow-faced instead oftwo wide-faced members, but inother respects corresponds to the construction shown in Fig. 1.

The pulleys shown in Figs. 4, 5, and 12 have the grooved faces similarto those shown in Figs. 1 and 2; but it will be understood that theymaybe made with flat faces, if preferred. It will also be understoodthat all the forms of pulleys described may be adapted for use with achain of any suitable construction and size and that any other preferredmeans than the one employed may be adopted for supporting theantifriction guide-wheel and the guard-plates therein.

The pulley is adapted for use wherever it is desired to transmit powerby means of an endless rope, cable, chain, or round belt, and Whileprimarily designed for use in the trans mission of power from atraction-engine to the separator of a threshing-machine it maynevertheless be used with various kinds of hoisting or elevatingdevices.

I have shown the rope or chain wrapped once and a half times around thepulley; but for hoists and elevators I may prefer to make a single turnor a turn and a quarter. As the pulley can be driven forward orbackward, it is not necessary that the rope or chain be endless. Theendless form of rope or chain is used in transmitting power from adrivingpulley to a driven pulley; but where the device is employed in ahoisting or elevating apparatus or similar devices the flexibleelevating means used with the pulley need not be endless. In severalfigures of the drawings I have shown a wide-faced pulley, much widerthan is necessary for the rope,- chain, or cable to run on. In Figs. 12and 13, however, I have shown a pulley having a face wherein eachsection corresponds substantially in Width to that of the groovetherein. It will be understood'that a pulley having any desired width offace may be employed and either with or without groovesin its periphery,as preferred. If a chain is to be employed in connection with thepulley, I may prefer to dispense with the grooves in the face.

In the use of this device I do not wish to be confined to the number oftimes the rope,

chain, or cable is wrapped around the face of thepulley, as the numberof loops may be increased or decreased according to the work to beperformed or the preference of the operator.

In practice I shall prefer to employ castings for the guards in front ofthe pulley, and these may be braced and strengthened by suitable ribs.Any other suitable means than I have shown may be employed forsupporting the wall within the pulley, and various modifications may bedevised of the guardplates between the sections of the pulley and themanner of supporting them, and in many ways the details of constructionmay be modilied by any one skilled in the art without departing from myinvention.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. The combination, with a pulley, of an endless ropeor cable having a loop or wrap around the peripheral face of the pulley,means for engagingsaid loop to direct it across the face of the pulleyas it revolves, and an antifriction wheel or roller provided in theperiphery of the pulley and having its axis at an angle to the axis ofthe pulley, for the purpose specified.

2. The combination, with a pulley, of an endless rope or cable engagingsaid loop or wrap around the face of the pulley, means engaging saidloop to direct it across the face of the pulley as it revolves, and anadjustable antifriction wheel or roller provided in the periphery of thepulley and having its axis at an angle to the axis of the pulley, forthe purpose specified.

3. The combination, with a pulley, of an endless rope or cable having aloop or wrap about the peripheral face of the pulley, adjustable meansengaging said loop to direct it across the face of the pulley as itrevolves, and an antifriction wheel or roller provided within theperiphery of said pulley and having its axis at an angle to the axis ofsaid pulley, for the purpose specified.

4. The combination, with a pulley, of an endless rope or cable having aloop or wrap about the peripheral face of the pulley, an antifrictionwheel or roller provided within the periphery of the pulley and havingits axis at an angle to the axis of said pulley and adapted to directthe rope or cable from one side of the pulley to the other, and asuitable guide or guard Wheel provided near said antifriction-wheel toprevent the rope from running off the same when the pulley is runningforward, substantially as described.

5. The combination,with a pulley, of a rope or chain looped about theperipheral face of the same, means for directing the rope from one sideof the pulley to the other, and an antifriction wheel or rollersupported within the periphery of the pulley, and having its axis at anangle to the axis of the pulley, and proj ecting beyond the face of thesame to engage the rope as it passes from one side of the pul ley to theother, substantially as described.

6. The combination, with a pulley divided vertically into two annularsections or members, of a shaft whereon said members are mounted with aspace between them, an endless rope or cable looped or wrapped aboutbers, of a shaft whereon said members are secured with a space betweenthem, a rope or cable looped or wrapped about the peripheral face ofsaid members, means engaging said loop to direct it across said spacefrom one member to the other as the pulley revolves, a suitable guardcoacting with said directing me'ans,an antifriction wheel or rollerprovided between said members and having its axis at an angle to saidshaft and projecting beyond the peripheries of said members to engagethe rope as it passes from one to the other, and a suitable guard toprevent the rope from leaving said antifriction-wheel when the pulleyisreversed, substantially as described.

8. The combination, with a pulley, divided vertically into two annularsections or members, of a shaft whereon said members are mounted with aspace between them, a rope or cable looped or wrapped around theperipheries of said members, an adjustable plate engaging said rope todirect it from one member to the other, a guard coacting therewith, anantifriction wheel or roller provided between said members, andprojecting outside the peripheries of the same to engage the rope as itpasses from one member to the other, and a suitable standard or supportwhereon said wheel is pivoted, substantially as described.

9. The combination, with a pulley, of a rope or cable looped or wrappedabout the peripheral face of the pulley, means engaging the rope, cableor chain to direct it across the face of the pulley as it revolves, andan antifriction wheel or roller provided in the periphery of the pulleyand having its axis at an angle to the axis of said pulley, whereby itsdirection of rotation will be diagonally across the face of the pulley,for the purpose specified.

10. The combination, with a pulley, of a rope or cable looped or wrappedabout its peripheral face, means engaging the rope to direct it acrossthe face of the pulley as it revolves, and an adjustable antifrictiondevice provided within the periphery of the pulley wrapped about theperipheral face of the pulley, means engaging said power-transmittingmeans to direct it across the face of the pulley as it revolves, and awheel or roller provided in the periphery of the pulley, the directionof rotation of said wheel being diagonally with respect to the face ofthe pulley, for the purpose specified.

12. A pulley, in combination with flexible power-transmitting meanslooped or wrapped about its peripheral face, and an antifriction deviceon the periphery of the pulley, the direction of movement of saidantifriction device on its axis being diagonally with respect to theface of the pulley, for the purpose specified.

13. A pulley having annular grooves in its face, in combination withflexible power-transmitting means looped or wrapped about the same, andan antifriction device provided in the periphery of the pulley, androtating in a direction diagonally with respect to the face of the same,for the purpose specified.

14. A pulley, in combination with flexible power-transmitting meanslooped or wrapped about its face, and a flanged wheel or roller providedon said pulley, the direction of its rotation being diagonally withrespect to the face of said pulley, for the purpose specified,

In testimony whereof I have hereunto set my hand, this 16th day ofNovember, 1900, at Aberdeen, South Dakota.

EMIL L. WAGNER.

In presence of O. H. SEELEY, W. F. MAsoN.

